Fill oil into the oil tank, when the hydraulicpump is full of oil fluid, manually turn the coupling, till there is no bubble in the oil outlet.
向油箱灌油，当油液充满液压泵后，用手转动联轴节，直至泵的出油口出油并不见气泡时为止。
2
The hydraulic calculation method for fluid delivery pipeline system of centrifugal pump and the method of determining the pump installation height are introduced.
简述离心泵和管路的特性，介绍离心泵流体输送管路系统的水力计算方法，以及如何确定泵的安装高度。
3
It was shown by calculation results that the flow ripple and fluid noise of hydraulicpump increased seriously when the bulk modulus descended.